Laboratory Manual for Introductory Circuit Analysis
13th Edition
ISBN: 9780133923780
Author: Robert L. Boylestad, Gabriel Kousourou
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 61P
If the total input and output power of two systems in cascade are 400 W and 128 W, respectively, what is the efficiency of each system if one has twice the efficiency of the other?
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Chapter 4 Solutions
Laboratory Manual for Introductory Circuit Analysis
Ch. 4 - What is the voltage across a 220 resistor if the...Ch. 4 - What is the current through a 2.20 resistor if the...Ch. 4 - How much resistance is required to limit the...Ch. 4 - At starting, what is the current drain on a 12 V...Ch. 4 - If the current through a 100k resistor is 3.6A...Ch. 4 - If a voltmeter has an internal resistance of 50k...Ch. 4 - If a refrigerator draws 2.2 A at 120 V, what is...Ch. 4 - If a clock has an internal resistance of 8k find...Ch. 4 - A washing machine is rated at 4.2 A at 120 V. What...Ch. 4 - A CD player draws 80 mA when 4.5 V is applied....
Ch. 4 - The input current to a transistor is 20A If the...Ch. 4 - Prob. 12PCh. 4 - If an electric heater draws 9.5 A when connected...Ch. 4 - In a TV camera, a current of 5.6 mA passes through...Ch. 4 - Plot the curve of I (vertical axis) versus...Ch. 4 - Plot the I-V curve for a 5 and a 20 resistor on...Ch. 4 - Prob. 17PCh. 4 - Sketch the internal resistance characteristics of...Ch. 4 - Plot the I-V characteristics of a 1k,10k, and a 1M...Ch. 4 - If 540 J of energy are absorbed by a resistor in...Ch. 4 - The power to a device is 40 joules per second...Ch. 4 - How many joules of energy does a 8 W nightlight...Ch. 4 - How long must a steady current of 1.4 A exist in a...Ch. 4 - What is the power delivered by a 12 V battery if...Ch. 4 - The current through a 4k resistor is 7.2 mA. What...Ch. 4 - The power consumed by a 2.2k resistor is 240 mW....Ch. 4 - What is the maximum permissible current in a 82,...Ch. 4 - The voltage drop across a transistor network is 22...Ch. 4 - If the power applied to a system is 10 kW, what is...Ch. 4 - A 1 W resistor has a resistance of 4.7M . What is...Ch. 4 - A 2.2k resistor in a stereo system dissipates 42...Ch. 4 - What are the hot resistance level and current...Ch. 4 - What are the internal resistance and voltage...Ch. 4 - A calculator with an internal 3 V battery draws...Ch. 4 - A 20k resistor has a rating of 100 W. What are the...Ch. 4 - What is the total horsepower rating of a series of...Ch. 4 - A 10 resistor is connected across a 12 V battery....Ch. 4 - How much energy in kilowatthours is required to...Ch. 4 - How long can a 1500 W heater be on before using...Ch. 4 - A 60 W bulb is on for 10 h. a. What is the energy...Ch. 4 - In 10 h an electrical system converts 1200 kWh of...Ch. 4 - At 12/kWh how long can you play a 250 W color...Ch. 4 - The electric bill for a family for a month is...Ch. 4 - How long can you use an Xbox 360 for $1 if it uses...Ch. 4 - The average plasma screen TV draws 339 W of power,...Ch. 4 - The average PC draws 78 W. What is the cost of...Ch. 4 - If a house is supplied with 120 V, 100 A service,...Ch. 4 - What is the total cost of using the following at...Ch. 4 - What is the total cost of using the following at...Ch. 4 - Prob. 50PCh. 4 - The motor of a power saw is rated 72% efficient....Ch. 4 - What is the efficiency of a dryer motor that...Ch. 4 - A stereo system draws 1.8 A at 120 V. The audio...Ch. 4 - Prob. 54PCh. 4 - Prob. 55PCh. 4 - An electric motor used in an elevator system has...Ch. 4 - The motor used on a conveyor belt is 85%...Ch. 4 - Prob. 58PCh. 4 - The overall efficiency of two systems in cascade...Ch. 4 - What is the total efficiency of three systems in...Ch. 4 - If the total input and output power of two systems...Ch. 4 - Using PSpice 0r Multisim, repeat the analysis of...Ch. 4 - Using PSpice or Multisim, repeat the analysis of...
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- Solve this. find the initial conditions ic(0-) and vc(0-) the switch opens at t=0 so it's closed at t=0- dont copy the response from previous because it's wrong. please solve in great detail explaining everything step by step. now the way i thought about it is Getting millman voltage (1/3)-2 / (1/3)+(1/2) and it's the same as Vc as both are nodal voltages but i wasn't sure if correct. because i didnt take into consideration all voltages (Vc here) even though it's the same so i'm quite confused. please explain to me if i'm correct and if not tell me why and where my thinking was flawed. thank youarrow_forward3. Consider the RL circuit with a constant voltage source shown in the diagram below. The values of the resistor, inductor, and input voltage are R = 100, L = 100 mH, and Vo = 12V, respectively. Vo - Ti(t) R w When the switch closes at time t = 0, the current begins to flow as a function of time. It follows from Kirchoff's voltage law that the current is described by the differential equation di(t) L dt + Ri(t) = Vo⋅arrow_forward4. Consider the RL circuit with a sinusoid voltage source shown in the diagram below. The values of the resistor, inductor, input voltage amplitude and frequency are R = 5, L = 50mH, and Vo = 10 V, respectively. The input voltage frequency w is variable. Assume that the circuit has reached steady state. Voejwt + ↑i(t) R سيد The input voltage can be described using the complex sinusoid function V(t) = Voejwt The current is given by a sinusoid with same the frequency was the input voltage, but a different magnitude and different phase. The physical voltage and current are obtained by taking the real part. In complex form, the current is given by i(t) Vo ejwt R1+jw/ The differential equation that describes the current follows from Kirchoff's voltage law, and is given by di(t) L + Ri(t) = Voejwt dtarrow_forward
- 2. (4 marks) Use the real and imaginary parts of ĉejut, where ñ = a + jb = e³, to show that: c cos(wt) = acos(wt) – bsin(wt), csin(wt) = a sin(wt) + bcos(wt). Describe the relations between a, b, c, and o.arrow_forwardCompute the thevenin equivalent between the two terminals a-b zeq and veq show all your steps and explain clearly what you did.arrow_forwardI need help with this problem and an explanation of the solution for the image described below. (Introduction to Signals and Systems)arrow_forward
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